klippy: Introduce load_config_prefix() for modules that take parameters

Use both load_config() and load_config_prefix() functions when
dynamically loading a module from the extras directory - if the config
section name has parameters in it then use load_config_prefix().

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/extras/bed_tilt.py

@@ -90,6 +90,4 @@ class BedTiltCalibrate:
                 z_warn, new_params['x_adjust'], new_params['y_adjust']))
 
 def load_config(config):
-    if config.get_name() != 'bed_tilt':
-        raise config.error("Invalid bed_tilt config name")
     return BedTilt(config)